Big Bang Boo

When you love someone’s brain, and maybe love them, but don’t pursue a sexual relationship.

Usually coincides with having a spouse you can’t talk to about work or intellectual topics and you use a smart girl/guy as a conversational side piece.

Dr Meade and Harris are always talking and eating lunch together, are they hooking up?

Nah, she’s just his Big Bang boo, his wife is a kindergarten teacher.